This is a mechanical plug for closing off heat exchange tubes. It is a groundbreaking maintenance method that eliminates the need for welding closures in high-pressure equipment.
In the maintenance of heat exchanger tubes, the current methods for sealing leaking tubes include driving in taper pins and seal welding for high-pressure equipment. The Pop-A-Plug from Curtis Wright in the United States uses a specially machined mechanical structure plug that is sealed using a dedicated tool. It maintains pressure resistance up to approximately 40 MPa, and seal welding after plugging is not required (the maximum pressure resistance varies by size). Welding work requires time for the work itself, pre-treatment such as heat treatment, applications related to the use of open flames, and inspections during the welding process. However, Pop-A-Plug can reduce this workload and does not use heat, thus preventing damage to the equipment. It is a sealing method that can significantly shorten the recovery period of the equipment. *According to ASME PCC-2-2022, the guidelines for the maintenance of pressure equipment, Pop-A-Plug is recommended as a tube plug for heat exchangers. *For more details, please download the PDF or contact us.
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basic information
【Pop-A-Plug CPI/Perma Medium Pressure Plug】 • Maximum pressure resistance: 6.9 MPa • Size range: 1.5 – 3.0mm • Standard size: 11.9 – 52.5mm 【Pop-A-Plug P2 High Pressure Plug】 • Maximum pressure resistance: 48.3 MPa • Size range: 0.5mm • Standard size: 5.5 – 50.8mm Pop-A-Plug requires a dedicated hydraulic tool. Pop-A-Plug is also removable. For more details, please contact us.
Price information
It varies depending on the material/size of the selected plug.
Delivery Time
※Please contact us.
Applications/Examples of results
Overseas petrochemical plants (standard parts for Dow, Shell, Exxon Mobil, etc.) Overseas nuclear plants (used in over 90% in the U.S. and France) Domestic oil plant clients Domestic chemical plant clients
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Company information
We are the domestic agents for overseas machinery/tool manufacturers necessary for plant maintenance and equipment fabrication. ■MAUS ITALIA (Italy/Repair tools and equipment for heat exchangers, manufacturing tools and equipment) They are one of the few specialized machine manufacturers in the world focusing on heat exchangers. They have numerous achievements in Japan, ranging from plant engineering companies to construction companies. ■CURTISS-WRIGHT EST Group (United States/Piping pressure test plugs, heat exchanger tube sealing plugs) They are a machinery manufacturer with specialized expansion seal technology. They produce mechanical plugs that can seal heat exchanger tubes with a single touch without welding, as well as test plugs that can achieve high pressure sealing during piping pressure tests simply by attaching the plugs. - Their special plugs enable high-pressure sealing, allowing for safe and significant reductions in labor. - They already have numerous achievements in repair sites of domestic and overseas oil/chemical plants, as well as in factories manufacturing large equipment such as boilers. - The sealing plugs for heat exchanger tubes are a noteworthy product that is increasingly being adopted in Japan. ■Various types of hose bands, clamps, and tools.